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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
c35e0fea64
Add a type representing a non-discriminated union of IDs. Refactor the node stack to use it. Plus a few other refactorings aiming to clean up and simplify the code. The overall goal here is that adding a new kind of ID, node category, or instruction should only require changing one place in the node stack rather than a bunch of different changes. One minor functionality change: crash backtraces now use the correct type for IDs when dumping the node stack rather than using `InstID` printing for all but one case.
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/check/node_stack.h"
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#include "llvm/ADT/STLExtras.h"
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namespace Carbon::Check {
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auto NodeStack::PrintForStackDump(llvm::raw_ostream& output) const -> void {
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auto print_id = [&]<Id::Kind Kind>(Id id) {
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if constexpr (Kind == Id::Kind::None) {
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output << " -> no value";
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} else if constexpr (Kind == Id::Kind::Invalid) {
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CARBON_FATAL() << "Should not be in node stack";
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} else {
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output << " -> " << id.As<Kind>();
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}
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};
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output << "NodeStack:\n";
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for (auto [i, entry] : llvm::enumerate(stack_)) {
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auto parse_node_kind = parse_tree_->node_kind(entry.parse_node);
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output << "\t" << i << ".\t" << parse_node_kind;
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switch (parse_node_kind) {
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#define CARBON_PARSE_NODE_KIND(Kind) \
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case Parse::NodeKind::Kind: \
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print_id.operator()<ParseNodeKindToIdKind(Parse::NodeKind::Kind)>( \
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entry.id); \
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break;
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#include "toolchain/parse/node_kind.def"
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}
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output << "\n";
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}
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}
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} // namespace Carbon::Check
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